Roof Prism Binocular
After the Recent Binocular “revolutionâ€, How Do I Choose the Right Pair of Binoculars for My Needs?
Author: Reed S. Oxman M.D.
The following is an article written to teach the customer basic terminology that is used when discussing the 21st century first binocular generation. This article covers the two most important groups of terms. The first group of terms or jargon involves the roof and porro prisms. The second of the two most important terms needed to learn to understand and to say are numbers rather than more words. They are one small and one larger number separated by an “xâ€. An example is 8 x 32. Read the article and both words and numbers will all be explained to your satisfaction.
Â
Â
When one speaks of a binocular “revolutionâ€, the reference is to all the manufacturers involved in producing numerous different models of binoculars. What happened and when? 18-24 months ago, several well-established and highly respected manufacturers involved in the use of optics decided to use current new technology and mix it with the basic binoculars of the time. At that time, binoculars differed mainly by their manufacturer, the actual size of the pair of binoculars, and their price, which was manufacturer notoriety dependent.
Â
Now prior to 2 years, the selection of a pair of binoculars was quick and easy. Now, however, if a consumer decided to look for a pair of binoculars for their specific needs, their task can quickly and suddenly become an overwhelming one. A consumer now has to have a background (such as given to them in this article) on the new generation of binoculars, so that their pick will fulfill their needs.
Â
Customers are now faced with choices of manufacturers, models, and functional types with prices ranging from a low of $30 to highs in the hundreds and thousands of dollars. The best way to handle all this information is to simplify it so that the pair you buy is the pair you need. Once you set out to learn the new terminology or jargon used to describe these binoculars, you will realize how lucky you are to have this new generation available.
Â
All current types of binoculars can be divided into two groups: the porro prisms and the roof prisms.
Â
The models in the porro prism category tend to be the more traditional looking pairs of binoculars with their lenses offset, while appearing as wide as they are long. These same models tend to be heavier and bulkier. One very positive aspect of porro prism model design is that they tend to let in more light than their counter parts. This extra light produces sharper and brighter images.
Â
On the other hand, roof prism binoculars look like the connection of two straight tubes. The designs are much newer allowing for production of more compact binoculars. Their lenses can still be fairly large, similar to the porro type binoculars. Due to their newer designs, even with large lenses, the physical weight and size of these binoculars can still be greatly reduced. On the whole, roof prisms tend to be small and lighter weight binoculars as compared to the slightly older and heavier porro cohorts. To repeat, porro binoculars tend to produce sharper and brighter images than the lighter in weight, and smaller in size roof binoculars.
Â
The second important jargon used to describe a pair of binoculars involves numbers rather than words. This descriptive language is written as one small number and one large number separated by an “x”. The first number on the left side of the x represents the number of time the object is magnified when viewing it through the lens. The number to the right of the x represents the diameter of the objective lens, expressed in millimeters. Therefore, the combination of 8 x 32 means the object appears to be magnified eight times while seeing it through a lens that is 32mm in diameter.
Â
Therefore, when setting out to pick the binoculars best for you or as a gift, it is important to learn about and understand the two types of prisms and the meaning of the two number, separated by an x.  The first number to the left of the x represents the number of magnifications one sees the object while looking through the two lenses. The second number or the one to the right of the x represents the number of mm of the diameter of the lens. The higher the number to the right, the larger the lens diameter and the more light that can get through. The more light, the brighter and sharper the image appears. Unfortunately, the larger the diameter of the lens, the heavier and bulkier is the pair of binoculars, the more cumbersome it is to carry.
Â
In an upcoming article, I plan on delving even deeper into the specifications that are used to understand and help the customer in finding that pair that will fulfill their needs best.
Â
About the Author:
Reed Oxman, the author of the above, is also creator and owner of the best place to purchase your needed Binoculars and Digital Binoculars , along with other types such as Waterproof Binoculars that you, your friends, or family may need. Bo rn and raised in California, he attended UC Berkeley Undergraduate, UC Los Angeles Medical School of Medicine and became Board Certified in Emergency Medicine and Pain Management.
Article Source: ArticlesBase.com – After the Recent Binocular “revolutionâ€, How Do I Choose the Right Pair of Binoculars for My Needs?
|
|
Brunton Echo Mid-Size 8×32 Binocular $194.41 Offering an impressive collection of features at a nice price point, the Brunton Echo Mid-Size binocular excels at mid- to long-distance viewing. The lightweight 8x power binocular features a polymer frame that weighs a mere 20 ounces, along with ergonomic body armor that protects the frame from damage. The Echo’s high-clarity 32mm objective lenses, meanwhile, are made of BaK-4 prism glass and are… |
|
|
6x20mm Prismatic Binoculars $17.99 Young explorers will love these high-quality, lightweight binoculars, featuring the same internal prismatic reflection system found in much more expensive binoculars. The handy strap and protective pouch make it easy to grab for a quick nature hike, overnight trip, or the top bleacher seats! Simulated leather case included…. |
|
|
Celestron Outland X 8×25 Binocular, Black $46.95 Celestron Outland X 8×25 Binoculars 71340… |
|
|
Brunton 11×45 Eterna Full Size Binoculars, Black F-E1145 $272.94 Brunton 11×45 Eterna Full Size Binoculars, Black E1145… |
|
|
BUSHNELL 171043 PERMAFOCUS 10 X 42MM ROOF PRISM BINOCULAR $105.96 PERMAFOCUS 10 X 42MM NEVER NEEDS FOCUSINGFULLY COATED OPTICS 305′ FIELD OF VIEW TWIST-UP EYE CUPSUPC : 029757171030Shipping Dimensions : 6.60in X 5.80in X 2.70inEstimated Shipping Weight : 1.6… |
|
|
CARSON TK-821 TREK 8 X 21MM COMPACT ROOF PRISM BINOCULAR $27.96 8X MAGNIFICATION & 21MM OBJECTIVE LENS FULLY-COATED RUBY LENSESCOMPACT FOLDING DESIGNPOUCH NECK STRAP LENS COVERS & LENS CLOTH365 FT FIELD OF VIEW AT 1000 YARDS THE PERFECT COMPANION FOR SPORTING EVENTS CONCERTS & ALL OUTDOOR ACTIVITIES;UPC : 750668004178Shipping Dimensions : 9.25in X 6.50in X 3.10inEstimated Shipping Weight : 1.1228… |
|
|
Pentax 8 x 43 DCF ED Binoculars 8 x 43 DCF ED BinocularsThe PENTAX DCF ED 8×43 binoculars combine Extra Low Dispersion glass elements, full reflection and phase coated prisms, hybrid aspherical lens elements and fully multi coated optics. Built to last with JIS Class 6 waterproof construction, DCF ED binoculars feature a durable magnesium alloy body and a hard coating to protect exposed lens elements.Features:ED Optical glass el… |
|
|
Bushnell Powerview 8×21 Compact Folding Roof Prism Binocular (Black) $12.96 Bushnell PowerView binoculars offer the best of both worlds, combining contemporary styling and design with traditional Bushnell quality and durability. This particular PowerView binocular offers an 8x magnification and a 21mm objective diameter. The fully coated optics, meanwhile, guarantee superior light transmission and brightness, helping you see just about any target, whether you’re searching… |
|
|
Tasco Essentials 8×21 Binocular (Black) $8.20 The Tasco 165RB is a 8 x 21mm Essentials Roof Prism Binocular. It is perfect for giving to children, throwing in the glove box of a car or taking with you when you don’t want to worry about your investment. This ultra-light binocular offers outstanding compact performance with rugged, rubber armor for hiking, backpacking or bicycle touring…. |
|
|
Bushnell Falcon 10×50 Wide Angle Binoculars (Black) $31.54 Bushnell Falcon 10×50 Porro Prism Black Binoculars 133450… |
|
|
Bushnell Powerview 8x32mm Roof Prism Binocular $34.99 The Bushnell Powerview 8x32mm Roof Prism Binoculars offer a center focus binocular with multi-coated optics for bright, clear images. The binoculars come with carrying case, neckstrap and lens cloth. |
|
|
Sharper Image 6x16mm Folding Roof Prism Binoculars $15.99 These compact binoculars from Boston Traveler deliver 6 x magnifications with a 16 mm diameter lens. These folding roof prism binoculars come with a small set-in compass and straps which allow hands-free portability. |
|
|
Redfield Rebel 8x32mm Roof Prism Binocular $119.99 The Redfield Rebel 8x32mm Roof Prism Binocular features fully multi-coated lenses and premium BAK4 prisms to offer brightness, high resolution and edge clarity. The armored aluminum body provides durability in an ergonomic design. |
|
|
Rokinon 8 x 22 Compact Roof Prism Binoculars $16.85 Compact, pocket-sized binocularsBuilt with titanium anodized materials and coated opticsBinoculars feature roof prism design8x magnification power |
|
|
Rokinon 8 x 32 Fully Coated Roof Prism Binocular $27.04 Rokinon Special Performance binoculars capture innovation, technology, and precise performanceWith unparalleled attention to detail, comfort and quality, Rokinon binoculars stand apartBinoculars boast 8X magnification and 32 mm lens diameter |
|
|
Galileo Binoculars with Compass, Clock and Thermometer $27.99 Galileo binoculars are totally digitalOptics provides a 25 mm power roof prismBinoculars are ideal for camping and the outdoors |
|
|
10×42 Blackhawk Binoculars $0 Blackhawk binoculars soars high in performance. Impressive features, these rugged roof prism binoculars perform extremely well in all weather conditions and are a perfect companion on your next vacation, hike, sporting event and more! |
|
|
8×42 Blackhawk Binoculars $0 100-percent waterproof and fogproof, this rugged roof prism binocular set performs extremely well in all weather conditions. Other features include twist-up eyecups, BAK-4 prisms and a non-slip ergonomic rubber design. |
|
|
10×25 Blackhawk Compact Binoculars $42.49 Blackhawk binoculars soars high in performance. Impressive features, these rugged roof prism binoculars perform extremely well in all weather conditions and are a perfect companion on your next vacation, hike, sporting event and more! |
|
|
Barska 10×25 Atlantic Compact Binoculars $42.99 The distinctively designed Atlantic binocular is versatile enough to appeal to outdoor nature enthusiasts, yet meet the demands of serious hunters as well. These roof prism binoculars are sure to deliver superior optical performance. |
|
|
12×50 Atlantic Mossy Oak Break-Up Binoculars $104.99 The distinctively designed Atlantic binocular is versatile enough to appeal to outdoor nature enthusiasts, yet meet the demands of serious hunters as well. These roof prism binoculars are sure to deliver superior optical performance. |
|
|
8×32 Atlantic Binoculars $69.99 The distinctively designed Atlantic binocular is versatile enough to appeal to outdoor nature enthusiasts, yet meet the demands of serious hunters as well. These roof prism binoculars are sure to deliver superior optical performance. |
|
|
8×25 Blackhawk Compact Binoculars $42.99 100-percent waterproof and fogproof, this rugged roof prism binocular set performs extremely well in all weather conditions. Other features include fully coated optics, BAK-4 prisms and a non-slip ergonomic rubber design. |
|
|
10×42 Atlantic Mossy Oak Break-Up Binoculars $94.99 The distinctively designed Atlantic binocular is versatile enough to appeal to outdoor nature enthusiasts, yet meet the demands of serious hunters as well. These roof prism binoculars are sure to deliver superior optical performance. |
|
|
10×25 Digital Compass Binocular $96.48 More than just a binocular. This compact roof prism binocular has a large 1.6" LCD screen that displays the multiple functions of this binocular. Functions include digital compass, clock, temperature and stop watch. Includes a soft case and CR2032 battery. Fully Coated OpticsHigh Index BK-7 Prisms1.6″ (41mm) LCD DisplayFeatures Digital Compass (?3o), Time, Temperature (F/C), and Stop Watch (up to 1 Hr.)Water ResistantSoft Carrying CaseNo-Fault Lifetime Warranty |
|
|
10×42 Monarch ATB Binocular $299.95 Ultra rugged, rubber-armored, roof prism design Multicoated lenses for bright, clear images Precision aligned optics for extended viewing 100% Waterproof/Fogproof Extended eye relief and central focus for viewing convenience Rugged! Waterproof ! Fogproof! These are just three of the amazing features engineered for the quality and performance-minded outdoors enthusiast who knows and excepts the quality of a Nikon optical product. Nikon has developed the Nikon Monarch ATB (All Terrain Binocular) featuring a new, advanced roof prism optical design that not only provides a very high quality optical image and exceptional eye relief, but is built to withstand the toughest conditions you have in mind for yourself and your equipment. Monarch’s convenient central focus design enables the user to quickly alternate viewing distances when watching birds, wildlife and other objects. The user can also instantly attain clear, crisp, precise focus at any viewing distance from 18 feet to infinity .The new Monarch ATBs 10×40 is configured to provide all the benefits of full size binoculars, yet stands under 7-1/2-inches tall and weigh just 17.9 ounces. It’s the full size binoculars that are most often the choice of experienced birdwatchers, and others, who demand the ultimate in light gathering, field of view and image quality. Now you can choose the same for your binocular needs with this great piece of equipment. Built with an extremely durable alloy body housing, the Monarch ATB is ergonomically shaped to fit the hand and is completely rubber armored, providing a firm, slip-free holds. The Monarch ATB 10×42 is a true wide-field binocular with a field of view of 285 feet @ 1,000 yards. The wide-field feature allows the user to effectively scan wide expanses of terrain without the ”tunnel vision” effect commonly associated with higher power binoculars. The Monarch binocular has a large 40mm objective lenses to provide exceptional dawn/dusk light gathering capability. This binocular also incorporates multi-layered, anti-reflective lens coatings to deliver optimum brightness, high contrast, true colors and glare-free viewing. As in all Nikon binoculars, the Monarch ATB utilizes high quality BaK4 high-index prisms for clear, round images without vignetting. |
|
|
Stabileyes 14×40 w/Image Stabilizer Binocular $1199.95 Exclusive Onboard/Land switchable modes!New for 2002, the Nikon Stablieyes 14 x 40 are designed specifically for boaters and other outdoor enthusiasts. The Stabileyes 14 x 40 is a roof prism binocular that corrects for both shake and roll. By simply changing modes, you can have a standard binocular that is optimized for handheld use in fairly stable conditions, or a stabilized binocular that provides completely stable images from your boat. The heart of Nikon’s Stabileyes are the battery powered gimbaled servos that are actuated when the proper mode has been selected. Unlike many other stabilized pieces, the Stabileyes have been optimized as both a standard binocular and a stabilized binocular. All optical glass elements have been treated with multiple layers of anti reflective compound to provide true color in almost all conditions. Central focus design with an adjustable diopter. 209′ field of view at 1000 yds. |
|
|
10×50 Trailblazer ATB Binocular $179.95 The new Trailblazer ATB – full-size roof prism binoculars are right at home on any hunt. Trailblazer ATB 10×50 offers a slim, easy-to-carry design with a full-size view, for the budget-conscious user. 100% Waterproof/Fogproof Multicoated Optics Internal Focus system Long Eye Relief – Great for eyeglass wearers Rubber Armored body Turn and Slide Rubber eyecups Lead and Arsenic Free Eco Glass The Trailblazer ATBs offer generous eye relief, 19.7 mm, and turn-and-slide rubber eyecups – allowing the binoculars to be used as comfortably and effectively by eyeglass wearers as those with uncorrected vision. The 10×50 Trailblazer binocular offers a 294-foot field-of-view at 1000 yards. Nikon incorporates its exclusive Eco-Glass (made without the use of arsenic or lead) for all Trailblazer lens and prism elements, as well as multicoated lenses for maximum light transmission and image quality. Ergonomic styling, mated with a rubber-armored exterior, provides added shock resistance and a firm grip, wet or dry. Fully waterproof and fogproof – the Trailblazer All Terrain Binoculars offer the legendary Nikon ruggedness guarantee. Nikon incorporates its exclusive Eco-Glass (made without the use of arsenic or lead) for all Trailblazer lens and prism elements, as well as multicoated lenses for maximum light transmission and image quality. Ergonomic styling, mated with a rubber-armored exterior, provides added shock resistance and a firm grip, wet or dry. Fully waterproof and fogproof – the Trailblazer All Terrain Binoculars offer the legendary Nikon ruggedness guarantee. |
